Paste-applying machine



Oct. 19, 1926.

A. E. G'OO CH PASTE APPLYING MACHINE Filed Sept. 17. 1925 Patented Oct. 19, 192 s.

' ATHELE. cocoa, or BROQKTON, MAss cHnsnrrs.

PASTE-APPLYING ,lvrAcr-rrnn.

Application filed September 17, 1925. Serial No. 56,877..

This invention relates to improvements,

in aste-a lyin machines. w v

1% the frihnuf cture of shoes, for which my improvements are especially adapted, alihough useful in other arts, it 7 1 some grades'and styles of shoes,to apply what is known as a doubler to. the inner face of the shoe vamp,

shoe factory. The doubler ordinarily consists of a piece ofcotton fabrichaving a rap on one side thereof, the'side' which is applied against the vamp. The object of using the-doublers, permit the use of grade 0f leather for doubler producing the a lighter and cheaper the vamp, the applied effect of the thicker more expensive Vamps. :In

mented to the vamp, and also, it isnecessary that thedoubler ly flexible so as to readily partake of the V necessary flections of the vamp when the shoe is' on the wearer. v

Heretofore, much difficultyhas been en countered in providing the necessary amount of paste or other cementitious substance on the doubler for attachment to the vamp without stiffening of the doubler, paste or'the like hardening and imparting undesirable rigidity to the doubler. Ex-

1 perience has demonstrated that the paste or the like, employed for uniting the doubler and vamp, must be appliedat relatively widely spaced points and in comparatively. minute quantities to thenap of the doubler so'that the doubler *will be atta'ched to the ramp at asufficientnumberof points'so as to conform to the shape and movements of to a fabric or the like nap of cotton fabricsused fordoublers roller'lefis-adapted" to be I and" for this purpose thej'ournal' or shaft 16}, side of the con tamer and has applied thereto, a gear 19 the artofshoe manufacture. f a More specificallyyan object of inven-1 the vamp, but without any'i-igi'dity or stiff-f ness having beenimparted to the doubler,

.One object of-my invention isv to provide a machine of simple and relatively; in expensivegconstruction, which may be oper ated continuously to efiiciently and quickly apply comparatively n1inute-quantities of paste at relatively widely separated points and especially to the tion is a machine ofthe character generally indicated in' the preceding paragraph where'- paste and is customary, struction that, automatically,

'&II1 ll l":'OI' tained' at separated points on the conveyor v this being done in" what is known as the stitching room of the "10 the nap of the fabric, the latter as is well known, is to Ivamp.

jvention is to provi ered be left fully and'free-' due to the amer as shown 16 and 17, respectively, g V mounted-in suitable bearings 18 18, carried r by the side 'walls of the container. The:

' positively T driven during its travel outside o-fwthe body of paste so that, when an operator *holdsthe fabric such as a doubler temporarily in conpartly within the body of the 1,69 ,27 rrics;

coy

lactfwith themovlngvconyeyoryonly minute quantities of the paste will be thenbeing n proper condition] for attachment to the applied to.

A still further :gpeeific object of the inamount of paste which will be applied by a machine of the character'above indicated.

Other objects of the invention will more clearly appear from thedescription consid in connection with the drawings form'- inga' part hereof, and theappeneled claims following. i

In" the drawing forming a part of this I Figure 1 is a top plan view of specification, 'a' machine having my improvements incorporated therein, parts of one of the cover plates being broken away in order to more clearly illustrate'the' interior parts. Figure 2 is a vertical, longitudinal, sectional view of the machine and corresponding substantially to the line 22 of Figure 1. In both Figures 1 and 2, the'endless conveyor is indicated more "or less conventionally; And Figure 3 is a detail perspective of a portion; proved form thereof.

Insaid draw container for a of the endless conveyor and showing one 'ap quality of paste, the coni being tangular box-like form 13. Mounted within the container and a ings, 10 indicates asuit'able preferably of rec-i having end walls. I 1111,-side walls 1212 and bottom wall 5 I e means for varying the points relatively near the top thereof andat each end, are two'rolls or pulleys 14: and'15,

which may be of any suitable construction,

but are preferably composed of hollow tubes.

Said rolls are carried by suitable journals thereofis extended at one the latter being plurality of individual links projections 25 veyor, and such knob-like rounded projeo co-operating with another gear 20, carried by a jack shaft 21, the latter being driven by any suitable outside source of power, as, for instance, an electric motor (not shown). The improved endless conveyor, designated generally by the reference character A, is best shown in detail in Figure 3. As there shown, it comprises a plurality of strands extending lengthwise of the endless conveyor, each strand being composed of a 22-22. I have found that one suitable form of conveyor may be made of links such as indicated in Figure 3, each. link having two eyes 23 and 24:, in planes at right angles to each other so that one eye of each link, as, for instance, the eye 23 will extend in a vertical plane and thereby provide an upstanding rounded, knob-like projection 25. As will be evident, there will be as many knob-like as there are links in the con tions will be spaced at relatively wide distances apart both longitudinally of the conveyor and transversely thereof. The strands are I preferably .kept the proper distance apart laterally of the conveyor by any suit able means, as, for instance, by transversely extending rods 26, which are soldered or otherwise rigidly attached to a series of links transversely of the conveyor, the spacing rods 26 occurring at suitable intervals longitudinally'of the conveyor. Withthis construction, it is evident that the conveyor may be said to be of relatively wide open mesh and with a series of relatively widely spaced knob-like'projections disposed above the central plane of the conveyor proper.

The conveyor A is mounted on the two rollers 14 and 15 so that a portion of the path of travel thereof, as indicated at 27 in Figure 2, is within and through the supply of paste, the level of which will preferably be maintained at somewhere between one-half and two-thirds the height of the container from the bottom. The conveyor is guided upon the rollers 14 and 15, as by suitable annular flanges 2828 at the ends of the rollers. and, if desired, a positive drive may be imparted to the conveyor, by providing suitably spaced cogs 29-29 around the periphery of the roller is at each end thereof to engage the outside strands of the conveyor.

To maintain a normal tension upon the I preferably provide an idler conveyor,

d sposed centrally of roller or pulley 30,

.the container, said, roller having journals 31 at its ends, which work within vertically elongated guideways or bearings 32 at each side of the container so that the weight of the roller 30 is suspended on the bottom portion of the conveyor to maintain the normal tension.

As best indicated in Figure 2, a portion of roller and starts the path of travel of the conveyor will be horizontal near the top of the container and above or outside of the supply of paste, such portion of the conveyors travel being indicated at 33. This portion of the path of travel of the conveyor is accessible to the operator who, in the case of doublers, for instance, one of which is partially indicated at Set, will hold the doubler or a thereof, with the nap side as indicated at 35, in light contact with the conveyor, the travel of which is in the. direction as indicated by the arrow 7).

With the construction as thus far described, it will be observed that the conveyor, in passing through the supply of paste, picks up a certain amount thereof on all portions of the links compo'sing the conveyor. As'the conyeyor passes around the on its horizontal travel, it is obvious that the greater quantity of-the paste will drip or drain off and only such portions thereof be retained as are held by capillary attraction to the portions of the links. It will further be observed that, in holding the doubler or other fabric in con tact with the conveyor, the principal points of contact will naturally occur on the rounded knob-like portions of the individual links so that there will be only a relatively small or minute quantity of the paste applied from each knob-like projection-25 to the doubler and at relatively widely spaced. points both longitudinally and laterally of the conveyor.

In practice it is desirable to provide not only a medium of support for the conveyor during its horizontal travel to prevent 1111-- due flexing downwardly thereof by the operator, but also, to provide means for governing, to a certain extent, the amount of paste which will be applied to the fabric. For this purpose, I have provided What may be termed'a drip table 33', which preferably consists of a flat plate slightly rounded off at its ends as indicated at 33 to prevent catching against the conveyor. Said table 33 is adjustable vertically within desired limits by any suitable means, one such means comprising depending flanges 34, at each side of the table, the flanges 34 be ing slotted as indicated at 35 and receiving therein, bolts or screws 36, whereby vertical adjustment may be effected as will be understood, it being obviousthat the bolts 36 are carried by the side walls 12 of the container. By regulating the height of the table 33, I have found that the quantity of paste which will be retained on the uppermost portions of the conveyor can be regulated, the reason for which, as new best known to me, being that a certain quantity of the paste "in the layer will collect on the table, and. will retard the draining ofi of the paste. from the portion form of a film or thin light. Commonly,

mall separation the table links, depending uponthe amount of ma; between the conveyor and r prior to the operator applying the fabric in contact with the conveyor.

Inasmuch as the pasting machine is normally in use only during the daytime, it is desirable to prevent evaporation-of the )aste when not in use during the night, and

generic sense throughout the specification.

and hereafter in the claims since this is the term most'commonly employedin the shoe manufacturlng art.

In practice, such paste is of relatively thin consistency and very it will be understood that the term paste is employed broadly to designate any substance of a cementitious character.

- 7 Referring to the particular form of con veyor employed, in additionto the characby theagitation of the the vconveyorfpassing through it,.'; the paste.

scribed the same possibility ducing the quantity of teristics and functions outlined in the pre-' ceding, it will'be observed that the conveyor acts as a very efficient agitator for the paste due to the factthat the conveyor'is composed of a series of links with knobs or protuberances thereon, and the same will necessarily stir up or agitate the paste in the passage therethrough. Furthermore, the round knob-like particularly eflicientin applying paste to the light nap of a fabric since there are no sharp edges presented and hence, the

of catching nap is reduced to a minimum;

The advantages of my machine are that it permits of a rapid application of the paste to thedoubler or other article being treated; 'only the desired and minimum amounts of pasteare applied, thereby re paste required and paste produced by is always maintained in ency and without caking on the conveyor or other parts. I have herein shown and described what 1 'now consider the preferred manner'of carrying out the invention, and have dey with particularity with reference to the doublers employed in the manufacture of shoes,lbut the vsame is by way of illustration onl its proper consistof the supply it composed of-a mix ture of starch, water and animal glue, but

central is adapted to apply a'relatively projections 25 have proven or pulling out the a a suitable container for a of the same either and not by way of limitation, all changes; and modifications being contemplated that come within the claims appended hereto.

claim? 4 r 1. In a paste applying machine of the, character described,

the combination with a suitable container an endless paste conveyor having a path of travel in partthrough the paste, and in part, outside of the paste, said conveyor being of relatively large open relatively small. amounts or paste are re a supply of paste; of

mesh, whereby tained thereon at relativelyywidely separated points botlr laterally" and longitudinallyiof I -the conveyor and excess paste drained off in a:

that portion ofthe'conveyors travel outside of paste'to thereby permit small amounts of paste at application of,

longitudinally and laterally separated points to fabric; or the like, porarily in contact with the conveyor; and means for supporting and, imparting movementtothe'conveyor. s 2.111 a pasteapplying machine ot'the character 1 described, the. combination with a a suitable-container for? atzsupply of paste;

manually held temof an endless; paste conveyor having apath of travel in part throughthe paste and in part outsideof the paste, said conveyor be ing of relatively large open mesh with a knob-like paste-carrying and applying projection at each corner of the mesh, said knob-like projections extending, beyond the plane of the conveyor knob-like projections are spaced laterally and longitudinally of the conveyor and each of paste to a fabric or the like, when manually held temporarily in contact therewith, said open meshcon'veyor operating to agitate the paste during the passage of the conveyor therethrough; and means for supporting and imparting movement to the conveyor. 7

3. In a paste applying machine of the character described, the combination with supply of paste; of an endless conveyor having a path of travel in part through the supply of paste and in part horizontally outside of the paste;

means for supporting and imparting movement to the conveyor; and a flat table disposed in proximity to and under the conveyor in that where it travelshorizontally, said table be' whereby said small amount portion of its path of travel ing adaptedto limit 'the downward flexing of the conveyor. I I

4. In a paste applying machine of the character described, the combination with a' suitable container for a supply of paste;

of an endless conveyor having a path of travel in part through the supply of paste 4 and in pa rt horizontally outside of the paste;

means for supporting and imparting movement'to the conveyor; and-a fiatt-able disposed in proximity to and under the conveyor in that portion of its path of travel Where it travels'horizontally, said table being adjustable relatively toward and from the conveyor to thereby limit the flexing of the conveyor and govern the amount of paste delivered from the conveyor to the article being pasted, substantially as and for the purpose specified.

5. In a paste applying machine of the character described, the combination with a suitable container for a supply of paste; of an endless conveyor having a path of travel in part through the supply of paste, and, in part, outside of the paste in a horizontal path, said conveyor being of relatively large open mesh construction with a knoblilze projection at each corner of each'mesh whereby relatively small amounts of paste may be applied from said knobs to a fabric or the like at relatively widely separated points; a table disposed beneath the horizon-.

tally travelling portion of the conveyor,

said table being adjustable relatively toward and from said conveyor to thereby limit the downward flexing of the conveyor; means for supporting said conveyor and imparting movement thereto; and means for maintaining a normal tension upon said conveyor. r

6. In a paste applying machine of the character described, the combination with a suitable container for a supply of paste; of an endless paste conveyor having a path of travel in part through the paste, and in part, outside of and'above the supply of paste, said'conveyor being formed with a plurality of laterally and longitudinally spaced, rounded olt, relatively small, paste retaining and applying projections, said projections extending above the general plane of the conveyor when in that portion of the path of travel above the supply of paste whereby said projections are adapted to apply individually separated, small amounts of paste to an article, such as a piece of fabric, temporarily and manually held in contact therewith; and means for supporting and imparting movement to said conveyor.

In witness that I claim the foregoing I have hereunto subscribedmy name this 10th day of September 1925;

ATHEL E. GOOOH. 

